The number of customers that arrive in an hour at 3 sushi restaurants follow a Poisson distribution. Restaurant 1 Restaurant 2 a Restaurant 3 Calculate the expected number of customer arrivals per hour, if the probability of going to Restaurant 1 and Restaurant 2 are 0.5 and 0.4, respectively. The time it takes for someone to nish a bowl of ramen can be modeled by a random variable with the following moment generating function - Find the variance of the time it takes for someone to nish a bowl of ramen. Suppose A and B are Poisson random variables such that the rst moment of A is less than the first moment of B by 8, and the second moment ofA is 60% the second moment of B. Find Var[B]